I use the Orange Blast from Walmart as my primary APC. I've got some full strength, 4:1 and 10:1. I was washing a car with serious bugs on the front and without thinking grapped a mix of my 4:1 OB and sprayed down the front bumper. I will say that it cleaned the bugs off amazingly well. I am wondering however if this is okay to use on the paint (4:1 or 10:1 either one). The bottle doesn't really say so I'm wondering your thoughts. I didn't leave it on for very long as I was a little worried not knowing the effects. Oh, and I did re-wax the front bumper when I was done.